Abstract: A screening element in the form of a sintered monolithic body has an outer face and an opposing inner face with an area of the faces greater than 100 cm2 and the mean thickness Em between the faces greater than 4 mm. At least a portion of the outer face is textured such that Ai decreases from the inner face from a value of i greater than at least 50, A75?0.2×A0 and A95<0.9×A0, 0.03×A0<A95<0.5×A0 and A100<0.1×A0. Ai being the area occupied by the material alone along a plane i of internal section at the intermediate thickness Ei and i corresponding in percentage to the fraction of the mean thickness Em at plane i.

Abstract: A ballistic panel providing ballistic protection has a first plate having a rear surface and a front surface. A plurality of undulations is formed across the front surface of the first plate. The plurality of undulations increasing an amount of surface area to contact a projectile.

Abstract: A ballistic panel providing ballistic protection has a first plate having a rear surface and a front surface. A plurality of undulations is formed across the front surface of the first plate. The plurality of undulations increasing an amount of surface area to contact a projectile.

Abstract: An aircraft has an armor releasably attached to the body of an aircraft, an actuator connecting the armor to the body of the aircraft, and a control that, upon operation, actuates the actuator to release the armor from the body.

Abstract: A device for shielding floaters of an inflatable boat includes shielding plates for fastening in a juxtaposed arrangement to external faces of the floaters along their entire length and made of a light material which is resistant to the impacts of ordnance.